Just came across this amazing site , where i found PSP save games for most of the games.
US , EUR , JAP version games all are included.
Tried for Naruto Ultimate Ninja and Burnout Legends.
Just download and place it in the SAVEDATA Folder on your PSP.
[Remember to backup ur original savedata folder incase you want your save games]
Download for the respective version of ur game only.
Eg. US / EUR / JPN
Download Saved Games From Here
Will keep adding as i find.
Also Posted Here